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(.module:
[lux #*
[abstract
[equivalence (#+ Equivalence)]
[codec (#+ Codec)]
hash]
[data
["." text ("#@." monoid hash)]]])
## (type: Name
## [Text Text])
(template [<name> <side>]
[(def: #export (<name> [module short])
(-> Name Text)
<side>)]
[module module]
[short short]
)
(structure: #export equivalence (Equivalence Name)
(def: (= [xmodule xname] [ymodule yname])
(and (text@= xmodule ymodule)
(text@= xname yname))))
(structure: #export codec (Codec Text Name)
(def: (encode [module short])
(case module
"" short
_ ($_ text@compose module "." short)))
(def: (decode input)
(if (text@= "" input)
(#.Left (text@compose "Invalid format for Name: " input))
(case (text.split-all-with "." input)
(^ (list short))
(#.Right ["" short])
(^ (list module short))
(#.Right [module short])
_
(#.Left (text@compose "Invalid format for Name: " input))))))
(structure: #export hash (Hash Name)
(def: &equivalence ..equivalence)
(def: (hash [module name])
(n/+ (text@hash module) (text@hash name))))
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